Home / 2,910.21-4,365.24-718.94

Finding the Fourth Proportional to 2,910.21, 4,365.24 and 718.94

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Solution

The fourth proportional to 2,910.21, 4,365.24 and 718.94 is: 1,078.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.21 : 4,365.24 = 718.94 : x
  2. Step 2: Convert to fraction form
    2,910.21/4,365.24 = 718.94/x
  3. Step 3: Cross multiply
    2,910.21x = 4,365.24 × 718.94
  4. Step 4: Simplify right side
    2,910.21x = 3,138,323.82
  5. Step 5: Solve for x
    x = 3,138,323.82/2,910.21
  6. Step 6: Final answer
    x = 1,078.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.